Impregnating apparatus



Oct. 2 1923.

o. N. TEVANDER IMPREGNATING APPARATUS Filed Jan. 24. 1921 4 Sheets-Sheet 1 oef. 2,1923. 1,46gfis7 O. N. TEVANDER IMPREGNATING APPARATUS Filed Jan. 24. 1921 4 Sheets-Sheet 2 Oct. 2 1923.

O. N. TEVANDER IMPREGNATING APPARATUS led Jan'. 24. 1921 4 Sheets-Sheet 5 oct. 2,1923. 1,469,737

" O. N. TEVANDER IMPREGNATING APPARATUS Fired Jan. 24. 1921 sheets-sheet 4 Y. 50 the apparatus.

Patented Oct. 2, 1923o OLOF N. TEVANDER, OF CHICAGO, ILLINOIS, ASSIGNOR TO STANDARD CAP 6% SEAL CORPORATION, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

MPBEGNATING APPARATUS.

Application led January 24, 1921,. Serial 11o. 439,619.

To all whom it may concern Be it known that I, GLOF'N. TEVANDER, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Impregnating Apparatus, of which the following is a full, clear, concise, and exact description.

M invention relates to apparatus for l ren ering paper or other sheet material impervious to moisture and has a number of objects and advantages in view.

A part of the equipment of my invention includes a printing press, a drier for dry- 15 ing the prlnting, a container holding impregnating iuid, such as hot paraiin, and mechanism for passing the printed material to the impregnating Huid. The drier of this equipment fixes the printing ink and revents it from running or spreading w en the sheet material printed upon is being subject to the impregnating fluid.

The apparatusof 'my invention is of 'particular 'servzice in the preparation of paper discs serving as closures for milk bottles and when my apparatus is thus employed it also desirably includes a punch press for cutting out sections lor discs of paper that have been printed upon. It is preferably to cut out the discs before they are subject to the drier and in that event `there is employed conveying mechanism v positioned to receive the printed portions l punched out by the punch/press and convey them to the drier and thence tothe impreg- `nating fluid. I also desirably employ a reel upon which the waste portion ofthe paper is wound afterfthe punchin operation. ,The

drier that is employed for tdrying the printing ink upon the paper is preferably also adapted to heat the paper in order that the paper may. become morel perfectly impregnated with the araiiin.

Another part of th) in the presence of the impregnated sheet material which' is conveyed to the air circulator that serves to dry the impre ated sheet material before it is discharge from This. feature ofthe apparatus enables the packaging of the discs or other pieces of impregnated sheet material without danger of their cohesion.

I will explain my invention more fully by referencefto the accompanying drawings e equipment is inclusive of mechanism for forclng circulatlon of a1r showing the preferred embodiment thereof and in which Fig. 1 is a view, somewhat diagrammatic, showing the equipment of my invention in elevation; Fig. 2 is a plan view of the apparatusillustrated in'F ig. 1; Fig. 3 is a sectional view showing two printin presses, a punch press, a` reel upon whic the waste paper is wound, and the adjacent portion of the conveying mechanism for conveying the punched sections ofv sheet material from the punch press into the heater or drier, a part of which is also shown; Fig. 4 is a view in sectional elevation illustrating the drier, a container for the para'in or other impregnating mate- 70 rial, and portions of the conveyor mechanism for conveying the sections of sheet material to and from the container for impregnatingmaterial, a portion of the air circulator into which the impre nated sections of sheet material are passec being also indicated; Fig. 5 is a sectional view on line 5-'5 of Fig. 4; Fig. 6 is a View in sectionai'l elevation illustrating the air circulating device and a conveyor onto which the completed sections of sheet material are passed for packaging; and Fig. 7 is a sectional plan view on line 7-7 of Fig. 4.

'Like parts are indicated by similar characters of reference throughout the different figures. The invention will be specifically described as it is employed in reparing paper discs that are to be used as c osures for milk bottles, though the invention is not to be limited to any particular use to which itmay Jbe put. The discs l are stamped from a sheet of paper 2 which is furnished from a supply reel 3. The paper passes between the depressing roller 4 and the `shelf or table 5 and thence between the co-operating printing elements 6 cand 7 of one printing press 8 that prints in one color and the printing elements 7 and 9 of another printing press 10 that prints in another color, the printing element 7 in this instance being a stationary bed common to both presses while the printing elements 6 and 9 carry the plates or type which are suitably inked in any well known manner by inking rollers diagrammatically indicated at 11 and 12. In the embodiment` of the invention illustrated the printing forms 6 and 9 are reciprocated into printin relation with the paper and out of suc printing relation by means of the pitman 13 and 14 which are driven by eccentrics 15 and 16 that are upon the driving shafts 17 and 18. After the paper is printed upon it is passed between the male punching dies 19 and the female dies 20 of a punchpress 21, the male punching dies bein reciprocated by means of a pitman 22 w ich is driven by an eccentric 23 that is upon the driving shaft 24. 'A stripper 25 is interposed between the male and female punching dies for the purpose of stripping the male punching dies of the aper on which they operated. upon a conveyor belt 27 and the waste paper from which the discs are stamped is rolled upon a reel 28. 'llhe top stretch of the conveyor belt 27 carries the printed discs 1 forwardly into a drier 29. lnasmuch as the printed discs are to be impregnated preferably with paraffin the drier 29 is desirably also a heater which serves to heat the paper discs to enable the same to be more easily and perfectly impregnated with, the paraffin. rlhe heating drier 29 is elongated sufficiently to enable the discs to become properly dried and heated while they are passing through the heating drier. Any suitable means may be employed for furnishing heat to the heating drier, there being illustrated a steam coil 30 within an enlargement of the heatin drier for this purpose. The top of the drier may be in hinged' connection with the body of the drier in order to afford access to the interior ofthe drier for any purpose. By the time the printed discs of paper have been conveyed through the drier upon the conveying belt 27 passing through the drier the ink thereon has become sufficiently dry so that it will not spread when the discs are subjected to the impregnating fluid, and the discs have also become sufficiently hot to enable them more readily to assimilate the paraffin.

ln the embodiment of the invention illustrated the paraffin 31 is maintained in hot liquid condition within the bowl shaped bottom of the container 32 that is provided for the paraflin. ln order that the paraffin may be kept in a hot liquid condition the container 32 for it is sufficiently closed to retain the heat that is employed to liquefy and heat the paraffin. The heat may be furnished in any suitable Way, there beng illustrated steam piping 33 within Ithe container 32. An endless conveyor belt 34 travels about two end rollers 35 and a larger intermediate roller 36, the roller 36 depressing the middle portion of the lower stretch of the belt 34 into the paraffin. The upper stretch of' the conveyor belt 34 is positioned beneath an apron 37 onto which the heated and dried printed discs are discharged from the conveyor belt 27 and from which apron these discs fall upon the endless conveyor belt 34. This belt is preferably formed of rlhe printe discs 1 are discharged,

meager absorbent material which will absorb andI between the roller 39 and the belt 34( and in thus passing these discs will become impregnated with paraflin furnished thereto from the belt and the rollers 36 and 39. The discs being heated are in condition readily to receive the paraffin.

After the discs have become impregnated they are discharged from the conveyor belt 34 onto an apron 41 and from this apron the discs are discharged upon the conveyor belt 42 that conveys the disc'into the air drier 43 having top wall sections hinged Oto the body of the drier in order to afford access thereto.

The drier 43 is preferably an instrumentality for effecting the circulation of air in the presence of the discs that are passing through the drier upon the conveyor belt 42. There is employed an air circulating fan 44 which may be driven by an electric motor 45, air being forcefully discharged from the fan 44 into the elongated portlon of the drier through which the belt 42 is conveying the impregnated discs. The air is directed from the drier upon a screen 46, located above the belt 42, that serves to diffuse the air before it reaches said belt to prevent the air from being concentrated upon any portions of the conveyor` belt 42 and thereby prevent it from dislodging the discs from such belt. I desirably also employ a deflecting plate 47 between the outlet end of the fan 44 and the conveyor belt 42, this deflector being imperforate or sufficiently imperforate to prevent the air from passing immediately from the fan upon the belt 42 whereby agitation of the discs upon this belt is further guarded against.

rl.`he impregnated discs, in their passage through the drier 43, become cooled and dried. They are discharged from the drier 43 upon an apron 48 which directs the discs upon any suitable form of conveying mechanism that is employed to effect the discharge of the discs from the apparatus.

The conveying mechanism illustrated in# l pregnating -fluid.

presses.v It is not believed necessary to describe the means for transferring driving power` to the shafts and the conveying belts, and the other shafts of the equipment.

While I 'have herein shown and particu larly described the preferred embodiment of my invention I do not wish to be limited to the precise details of construction Shown as changes may readily be made without departing from the spirit of my invention, but having thus described my invention I claim as new and desire to secure by Letters Patent the following 1. The combination with a container holding impregnating fluid; of means for forcing circulation of air; mechanism for conveying impregnated material from the impregnating fluid container to the circulating air; and a screen through which the air is directed upon the impregnated material.

2. The combination with a container holding impregnating fluid; of means'for forcing circulation of air; mechanism for conveying impregnated material from the impregnating fluid container to the circulating air; a' screen through which the air is directed upon the impregnated material; and a deflector for diverting the air away from'one portion of the passage traversedby the material from the im- 3. The combination with a container holding impregnatingfluid; of means for forcing circulation of air; mechanism for conveying impregnated material from the impregnating fluid container to the circulating air; and a deflector for diverting the air away from a portion of the passage traversed by the material from the impregnating fluid.

4. The combination with a container holding impregnating fluid; of means for forcing circulation of air; a conveyor for conveying sections of sheet material from the impregnating'fluid to the circulating air; a screen through which the air is directed upon the impregnated sheet material; and a screw conveyor for transferring the treated sections of sheet material away from the circulating air.

5. The combination with a container holding impregnating fluid; of' means for4 forcing circulation ofv air; a conveyor for conveying sections of sheet material from the 1mpregnat1ng fluid to the c1rculating air; a screen through which the air is directed upon the impregnated sheet material; a deflector for diverting the air away from one portion of the passage traversed lby the sheet material from the impregnating fluid; and a screw conveyor for transferring the treated sections of sheet material away from the circulating air.

6. The combination with a container vholding impregnating fluid; of meansv for forcing circulation of air;a conveyor for 'conveying sections of sheet material from rected upon the impregnated sheet ma-l terial; and a conveyor for transferring the treated sections of sheet material away from the circulating air.

8. The combination with a containerv holding impregnating fluid; of means for forcing circulation of air; va conveyor -for conveying sections of sheet' material from the impregnating fluid to the circulating air; a screen through which the air is directed upon the impregnated sheet material; a deflector for diverting the air away from one portion of the passage traversed by the sheet material from the impregnating fluid; and a. conveyor for transferring the treated sections of sheet material away from the circulating air.

9. The combination with a container holding impregnatin fluid; of means for forcing circulation o air; a conveyor for conveying sections of sheet material from the impregnatin fluid to the circulating air; a deflector or diverting the air away from a. portion ofthe passage traversed by the sheet material from the impregnating fluid; and a conveyor for transferring the treated sections of sheet material away from the circulating air.

In witness whereof, I hereunto subscribe m name this twentieth day of January A. 1921.

OLOF N. TEVANDER. 

